History Undone

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History Undone episodes

June 20, 2025 What if the allies had won the Battle of Arnhem & Operation Market Garden? | History Undone
On this episode of History Undone, we're delving into our archives as James Hanson is joined by Chris Copson and Dr Chris Parry as they discuss the Battle of Arnhem and the wider consequences of Operation Market Garden. Would the war have ended sooner? Would the Battle of the Bulge have gone differently? Tune in to find out!
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57 min
June 13, 2025 Without The Battle of Monte Cassino 1944... Does Operation Overlord Work? | History Undone Archive
James Hanson is joined by Rear Admiral Dr Chris Parry and the historian, author and broadcaster James Holland to discuss one of the most brutal and attritional battles of the entire Second World War: The Battle of Monte Cassino. Just how important was it and the Italian campaign as a whole? This is History Undone.
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1 hr 4 min
June 06, 2025 If The Allies Had LOST Battle Of The Atlantic... Atomic Bombs Would be Dropped on Germany | History Undone
James Hanson is joined by Drachinifel and Rear Admiral Dr Chris Parry to discuss the longest continuous battle of the Second World War: The Battle of the Atlantic.

Between 1939 and 1945 both merchant and navy ships were attacked in the vast expanse of the Atlantic Ocean. Yet after 5 years and 8 months, the might of the Royal Navy helped the allies win here. So what if the Germans had won? This is History Undone.

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1 hr 3 min
May 30, 2025 What If D-Day Had Failed? WW2 Wouldn't End Until 1947 | History Undone Archive
The sixth of June 1944 D-Day 80 years on, is still the largest amphibious invasion of all time. It's a date that evokes emotion and national pride in equal measure, and it not only changed the Second World War, but history itself. Yet, what if the operation hadn't been a success?

Welcome to History Undone with James Hanson, the show where we take an alternative look at the events which have shaped our world. Each episode will focus on a different battle from throughout history, but using modern military analysis, we'll ask how things could have played out differently with a few tactical changes.

This week we're delving back into our archive, as James Hanson is joined by historian and researcher at The Tank Museum - Chris Copson, and former Amphibious Commander - Rear Admiral Dr Chris Parry, to investigate what would have happened if the offensive action at Omaha and other beaches had failed.

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51 min
May 23, 2025 Barbarossa: What If Hitler Had Successfully Invaded Russia? | Germany Invades Britain & Dominates Europe
By the summer of 1941 Nazi Germany is in near total control of continental Europe. A year earlier, the German blitzkrieg swept through Belgium, the Netherlands and France, and forced the British Expeditionary Force to evacuate at Dunkirk.

Then by 1941 Hungary, Romania and Bulgaria had all joined the axis, and Hitler looked further east despite a non aggression pact with Stalin's Soviet Union, Hitler saw his previous success as a blueprint to launch an operation which he thought could bring down the Red Army in a matter of months, codename Barbarossa. What followed was a brutal, drawn out strategic defeat, one which was perhaps the beginning of Hitler's downfall.

But what if Hitler had defeated Russia? This week we're delving back into our archives as James Hanson is joined by author and historian Rear Admiral Dr Chris Parry, and historian and former professor of international history at the University of Glasgow, Evan Mawdsley.
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53 min
May 16, 2025 If The Romans WON The Battle Of Teutoburg Forest... Would The Nazis Still Rise To Power? | History Undone Archive
For today's episode we're delving back into the History Undone Archive, as James Hanson is joined by Dr Adrian Goldsworthy and Rear Admiral Dr Chris Parry to discuss one of the Roman Empire's worst and most humiliating defeats: The Battle of Teutoburg Forest. Only a handful of Roman troops managed to escape here as they were massacred by the Germanic tribes led by Arminius, and the battle's impact on history is bigger than you might think. This is History Undone.
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1 hr 9 min
May 09, 2025 What If Germany Had Won at Stalingrad? How Britain's Global Empire Would Crumble | History Undone Archive
On this episode of History Undone, we're heading back into the show's archives to cover the Battle of Stalingrad - the biggest and bloodiest battle of all time - and how things may have transpired if the Germans had won. Joining James Hanson are the historian and author Rear Admiral Dr Chris Parry and historian, author and broadcaster Jon Trigg.
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55 min
May 02, 2025 What If The Allies Had Broken Apart In WW2? Totalitarian Rule Dominates Europe
James is joined by Rear Admiral Dr Chris Parry and the historian Tim Bouverie for this episode of History Undone, discussing the unlikely alliance of 'the big three' in the Second World War.

Britain, the United States and the Soviet Union were divided by culture and ideology, but united against a common enemy in Nazi Germany. Tim Bouverie joins the show to discuss the themes explored in his new book 'Allies at War: The Politics of Defeating Hitler' which is out now.
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58 min
April 11, 2025 Hitler’s ‘Wonder Weapons’ | Would Germany Have Won WW2 If These Were Ready Sooner?
James Hanson is joined by Rear Admiral Dr Chris Parry and Nigel Jones to discuss the German wunderwaffe or 'wonder weapons'. Hitler's Germany was responsible for some remarkable advances in military engineering, from long-range ballistic missiles, to the world's first ever jet powered fighter plane. However, Nazi ambition far outweighed the country's wartime capacities and many of these weapons were not available until too late on in the war. So what if these had been ready sooner - could it have made a significant difference to the outcome?
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56 min
March 14, 2025 What If Hitler Had Never Broken The Molotov-Ribbentrop Pact? A New Cold War Would Erupt | History Undone
For this episode of History Undone, James is joined by Rear Admiral Dr Chris Parry and the historian Roger Moorhouse to discuss one of the most significant moments at the beginning of the Second World War. Despite their huge differences and animosity, in August 1939 Germany and the Soviet Union signed a non-aggression treaty otherwise known as the Molotov-Ribbentrop Pact. Yet with Operation Barbarossa and the invasion of the Soviet Union in 1941, Hitler betrayed that trust. Yet what if he hadn't and what if it had held for the remainder of the war? This is History Undone.
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54 min

About History Undone

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History's biggest moments, Undone.

Every week, our presenter Fergus Macphee is joined by experts to hit rewind on key battles and strategic decisions, and run through the biggest 'what…